Weve been together 15 years, have small child, love each other but have probably been through the same strains over the last few years many couples do when they're sleep deprived, working and trying to maintain friendships/ see family. She's attractive fun and flirty (so is hubby) and spends time with him as they have hobbies in common. I trust him, have male friends and think men and women can be genuine friends without there being any undercurrents. I'm not sure I trust her (I've only met her a few times)- gut feeling is shes just flirty with lots ofmpeople like this HOWEVER she asked hubby away for a milestone birthday 'just the two of us?', messages him at least every fortnight (sometimes 10 times in a day), tells him who shes been having sex with, offers him 'big snogs' etc, AIBU to think this is playing with fire? When I said I wasnt happy he offered to cut all contact as our family is more important to him than any friendship, but i dont want to be that jealous controlling woman who wants such a thing.